<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片项 -->
    <el-card class="box-card">
      <el-row :gutter="20">
        <el-col :span="8">
          <!-- 搜索框及添加按钮 -->
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="queryGoodList">
            <el-button slot="append" icon="el-icon-search" @click="queryGoodList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="redirectToAddPage">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 商品列表 -->
      <el-table :data="goodlist" style="width: 100%" stripe border>
        <el-table-column prop="goods_name" label="商品名称"> </el-table-column>
        <el-table-column
          prop="goods_price"
          label="商品价格（元）"
          width="105px"
        ></el-table-column>
        <el-table-column
          prop="goods_number"
          label="商品数量"
          width="105px"
        ></el-table-column>
        <el-table-column prop="add_time" label="创建时间" width="155px">
          <template slot-scope="scope">
            <div>
              {{ scope.row.add_time | dateformate }}
            </div>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="265px">
          <template slot-scope="scope">
            <div>
              <el-button size="mini" type="primary" icon="el-icon-edit"
                >修改</el-button
              >
              <el-button size="mini" type="danger" icon="el-icon-delete" @click="removeGood(scope.row.goods_id)"
                >删除</el-button
              >
            </div>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页部分 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 5,
      },
      total: 0,
      goodlist: [],
    };
  },
  created() {
    //查询商品列表
    this.queryGoodList();
  },
  methods: {
      //获取商品列表
    async queryGoodList() {
      const { data: res } = await this.$http.get("/goods", {
        params: this.queryInfo,
      });
      if (res.meta.status != 200)
        return this.$message.error("获取商品列表失败");
      this.goodlist = res.data.goods;
      this.total = res.data.total;
      this.queryInfo.pagenum = res.data.pagenum;
    },
    //监听页面容量的变化
    handleSizeChange(newSize){
        this.queryInfo.pagesize = newSize;
        this.queryGoodList();
    },
    //监听当前页码的变化
    handleCurrentChange(newPage){
        this.queryInfo.pagenum = newPage
        this.queryGoodList();
    },
    //监听删除操作事件
    async removeGood(id){
        const confirmRes = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
        if(confirmRes != 'confirm') return this.$message.info('已取消删除')
        const {data: res} = await this.$http.delete('goods/'+id)
        if(res.meta.status !=  200) return this.$message.error('删除失败')
        this.$message.success('删除成功！')
        this.queryGoodList()
    },
    //跳转到添加商品页面
    redirectToAddPage(){
        this.$router.push('/goods/add')
    }
    
  },
};
</script>

<style lang="less" scoped>
</style>
